Although the Rich Client Platform version of CCRC has the Eclipse update and plug-in installation capabilities to install external plug-ins, this is not supported.

WORKAROUND:

If you wish to have remote ClearCase capabilities and leverage Eclipse technology with other plug-ins, you will need to download Eclipse 3.0.1 or later and install the ClearCase Remote Client plug-in for Eclipse.

Review technote 1215611 for more information on installing or updating CCRC for Eclipse.

Note: There is no difference in Rational ClearCase capabilities between the two clients (ClearCase Remote Client RCP vs ClearCase Remote Client plug-in for Eclipse).